After the first boss you can pick any of 4 different bosses to do next. We opted to try out the dogs. 2 lovely puppies who sometimes playfully roam about outside the raid in the antoran wastes. One dog loves hoover.. wait no.... shadow... he loves shadow while the other dog loves fire. It may seem they get along nicely but looks deceive here as they do like to be apart. 40 yards at least else you know they get a bit territorial. 3 main abilities per dog which trigger based on the energy % 33-66-100. There is meteor swirly dodging, laser line point away, living bomb run out, split soak aoe void zones, hooverball and aoe fear split soak. Some abilities favour grouping up others favour spreading out. The main thing we had adjust to was the fear. After having reshuffled some positioning for our raid size we managed to make quick work of the fight.